Added 8 October 2026
aad
/ɑːd/ symbol
symbol Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about aad at Wordnik → Where our words come from →
noun
- Initialism of active acoustic device; active acoustical device.
- Initialism of advanced ammunition depot.
- Initialism of alloxazine adenine dinucleotide.
Origin
Regional form of old (compare auld), from Northern Middle English ald (southern old).
From Wiktionary, via Kaikki.org (CC BY-SA)